XLi Precise, Versatile and Flexible Time and Frequency System0 pages

XLi Time and Frequency System
XLi
Time and Frequency System
The modular ultra precision Model XLi Time
and Frequency System is the most versatile
and flexible solution for timing and synchronization
requirements. The XLi is completely
modular through a variety of option cards
that are easily configured by the user. The
wide range of option cardsmake it easy to tailor
your system to support nearly every possible
output/input needed for time and frequency
applications, by combining up to ten option
modules (2U chassis), oscillator upgrades,
and two GPS receivers per unit.
Configuration recognition software automatically
detects the unit’s setup, without
modifications to the operating system, providing
“plug-and-play” configuration capability
for current and future application needs.
Modularity delivers the freedom to configure
the XLi as a GPS timing receiver, or a time
code unit (TCU). Deploy Symmetricom’s GPS
technology to generate ultra high precision
time and frequency outputs for a wide range
of synchronization requirements, or leverage
Symmetricom’s years of expertise in Time
Code technology, which is built into the heart
of the XLi system.
The XLi seemlessly integrates into a network
centric environment. The 10/100 Base-T
interface is standard. Remote management
KEY FEATURES
• 12 Channel GPS Receiver with TRAIM
• Better Than 30 Nanoseconds RMS
Accuracy to UTC
• Better Than 1x10-12 Frequency
Accuracy
• Supports Primary and Secondary
Reference Inputs (GPS, Time Code,
IPPS)
• Configurable as Dual Redundant GPS
Receiver in One Chassis
• Standard 10/100 Base-T Network Port
• Intuitive Web Based Management
• HTTP, Telnet, SNMP with MIB
Standard
• Vacuum Fluorescent Display
and Keypad
• Completely Modular with Plug-and
Play Capability
• Numerous Field-Upgradeable, Plug-in
Option Cards Available
• Time code reader/generator (IRIG A,B;
IEEE 1344; NASA 36) AM and DC
• Auxiliary Reference Input Supports
Lock to External Cesium to Enhance
Holdover
• Standard Outputs: 1PPS, Selectable
Pulse Rates and Alarm
• Flash Memory for Remote
Software Upgrades
is facilitated with the intuitive HTML web
based interface as well as SNMP with an
enterprise MIB. Command line interface is
also supported via Telnet or the RS-232/422
serial port. The XLi can function as a Stratum1
NTP server with addition of the NTS option.
The standard XLi provides a wide range of
time and frequency inputs and outputs such
as: 1PPS output; time code input/output
(IRIG A, B; IEEE 1344; NASA36) in both
modulated (AM) and demodulated (DCLS)
formats; programmable pulse rates; open
collector alarm; front panel keypad and display;
and more.
The modular XLi architecture allows easy
extension of the software and hardware in
the field. Software updates are remotely
administered. Existing and future hardware
option modules can be added as needed by
the user. The GPS timing interface is also
modular which facilitates future upgrade to
alternate Global Navigation Satellite Systems
(GNSS), such as Galileo, when available.
TIMING, TEST & MEASUREMENT